أَخْبَرَنَا قُتَيْبَةُ بْنُ سَعِيدٍ، قَالَ حَدَّثَنَا اللَّيْثُ، عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ، عَنْ رَسُولِ اللَّهِ صلى الله عليه وسلم قَالَ ‏"‏ الْخَيْلُ فِي نَوَاصِيهَا الْخَيْرُ إِلَى يَوْمِ الْقِيَامَةِ ‏"‏ ‏.‏

It was narrated from Ibn 'Umar that the Prophet said: "There is goodness in the forelocks of horses until the Day of Resurrection." Translation Not Available

Book Ref: Sunan An Nisai Book 28 Hadith 3573
Web Ref:  Sunan An Nisai Vol 4 Book 28 Hadith 3603